CN211200728U

CN211200728U - Connecting node structure of precast concrete externally-hung wallboard

Info

Publication number: CN211200728U
Application number: CN201921822080.3U
Authority: CN
Inventors: 吴宏磊; 王曦; 曹明敏
Original assignee: Architecture Design and Research Institute of Tongji University Group Co Ltd
Current assignee: Architecture Design and Research Institute of Tongji University Group Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-08-07
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to a prefabricated concrete externally-hung wallboard's connected node structure, externally-hung wallboard including interconnect, the major structure, externally-hung wallboard is equipped with pre-buried connecting piece according to a determining deviation with the junction of major structure, pre-buried connecting piece includes anchor steel sheet and end plate anchor reinforcing bar, welded connection behind the end plate anchor reinforcing bar runs through the anchor steel sheet, the end plate anchor reinforcing bar, pre-buried on externally-hung wallboard after the anchor steel sheet welding, the other end of end plate anchor reinforcing bar is fixed in the major structure, externally-hung wallboard's bottom is equipped with the screw thread blind hole, the top is equipped with the pre-buried dowel bar that stretches out, on, lower floor's externally-hung wallboard passes through the screw thread blind. Compared with the prior art, the utility model has the advantages of avoid the reinforcing bar collision, avoid leaking outward and corrode, waterproof performance is good.

Description

Connecting node structure of precast concrete externally-hung wallboard

Technical Field

The utility model belongs to the technical field of the assembly type structure technique and specifically relates to a connected node structure of precast concrete externally-hung wallboard is related to.

Background

The external wall board is a non-bearing concrete external wall board which is arranged on the main structure and plays the roles of enclosing and decoration. The factory prefabricated external wallboard can greatly shorten the construction period, reduce the labor force and has increasingly wide application range. At present, the external wall panel is mainly connected with a main structure in two modes, namely, the connection is supported by adopting a line for connecting reinforcing steel bars and then pouring concrete, and the connection is supported by points connected with the main structure through steel connectors and bolts after embedding steel pieces.

In coastal areas, steel connecting pieces adopted by the conventional external wall panels are exposed for a long time and are easy to rust, certain potential safety hazards exist, and the indoor attractiveness is influenced. The construction method of the external wall panel adopting the point supporting connection is that the main body is firstly hung and then the panel is hung, the structure is complex, and the requirement on the construction and assembly precision is high. And the external wall panel connecting steel bars connected by adopting the line support are easy to collide with the main structure steel bars, and the connecting steel bars cannot completely avoid the beam end encryption area when being hung on the frame beam, so that the influence on the calculation rigidity of the main structure is large, and the expected safety degree and reliability cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a connecting node structure of prefabricated concrete externally-hung wallboard, which has the advantages of simple node structure, convenient production and construction, safety and reliability, and aims at overcoming the defects existing in the prior art.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a prefabricated concrete externally-hung wallboard's connected node structure, includes interconnect's externally-hung wallboard, major structure, the junction of externally-hung wallboard and major structure be equipped with pre-buried connecting piece according to a determining deviation, pre-buried connecting piece include anchor steel sheet and end plate anchor reinforcing bar, end plate anchor reinforcing bar run through welded connection behind the anchor steel sheet, end plate anchor reinforcing bar, anchor steel sheet welding back pre-buried on externally-hung wallboard, the other end of end plate anchor reinforcing bar fix in major structure.

Preferably, the bottom of the external wall panel is provided with a plurality of threaded blind holes, the top of the external wall panel is provided with embedded joint bars corresponding to the threaded blind holes, one end of each embedded joint bar is fixed in the external wall panel, the other end of each embedded joint bar extends out of the top of the external wall panel, and when the external wall panel is connected with the external wall panel, the embedded joint bars of the external wall panel are inserted into the threaded blind holes of the external wall panel.

Preferably, the embedded joint bar of the external hanging wall board is inserted into the threaded blind hole of the external hanging wall board, and the external hanging wall board is fixedly connected by means of grouting.

Preferably, the side wall of the external wall board is provided with a pulp inlet and a pulp outlet, and the pulp inlet and the pulp outlet are respectively communicated with the threaded blind hole.

Preferably, the junction of upper outer wall panel and this layer outer wall panel is equipped with horizontal gap, and the both ends of this horizontal gap are equipped with and are used for carrying out waterproof sealing material spare of shutoff and shutoff mortar.

Preferably, the other end of the end plate anchoring steel bar is connected with the main structure in a pouring mode.

Preferably, the reinforcing steel bar main body of the end plate anchoring reinforcing steel bar is of a cylindrical structure, the anchoring steel plate is provided with a round hole, and the size of the round hole is matched with the cross section size of the reinforcing steel bar main body of the end plate anchoring reinforcing steel bar.

Preferably, the sealing material piece comprises an MS modified silane or PE rod.

Compared with the prior art, the utility model has the advantages of it is following:

1. the externally hung wallboard is connected with the main structure by the embedded connecting piece, so that the problem of collision with the main structure steel bar is avoided, the construction is convenient and fast, and the influence of the externally hung wallboard on the rigidity of the main structure can be reduced;

2. the lower end of the external wall board is provided with a threaded blind hole which is connected with embedded joint bars extending out of the lower external wall board in a grouting manner, the function of the external wall board is an out-of-plane constraint effect, and exposed corrosion caused by steel connection is avoided;

3. the threaded blind holes are connected with the embedded joint bars in a grouting manner, the horizontal seams of the upper and lower external wall panels are plugged by using sealing materials and plugging mortar, the horizontal seams between the threaded blind holes are not filled and connected into a whole in the grouting process of the threaded blind holes through reasonable interval arrangement, the horizontal seams form structural waterproofness for the rabbet, the structural materials of the sealing materials are used for waterproofing, and the grouting materials are used for forming structural waterproofness to form three combined waterproofing measures, so that the waterproof effect is better;

4. the utility model discloses a facade effect can highly establish the seam wantonly under the circumstances of guaranteeing to be reliably connected with the major structure to the requirement of hanging wallboard seam position when adaptable architectural design of connected node structure, and the suitability is strong.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a connection structure diagram of the anchor steel plate of the pre-buried connecting member and the anchor steel bar of the end plate of the present invention;

fig. 3 is a schematic diagram of the right-side view structure of the present invention;

FIG. 4 is a schematic view of the arrangement structure of the vertical water guiding pipes of the prefabricated wall of the present invention;

the reference numbers in the figures indicate:

1. this external wall panel, 2, the anchor steel sheet, 3, end plate anchor reinforcing bar, 4, major structure, 5, pre-buried dowel, 6, sealing material spare, 7, shutoff mortar, 8, grout material, 9, screw thread blind hole, 10, advance the thick liquid mouth, 11, grout outlet, 12, horizontal gap, 13, additional board seam binder, 14, honeycomb duct, 15, perps, 16, the external wall panel of upper strata.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Examples

As shown in figure 1, the utility model relates to a prefabricated concrete externally-hung wallboard's connected node structure, including externally-

hung wallboard

1, 16, major structure 4, pre-buried connecting piece, pre-buried joint bar 5, screw thread blind hole 9, sealing material spare 6. The outer wall panel is connected with the main structure 4. The joints of the external wall boards and the main body structure 4 are provided with pre-embedded connecting pieces at certain intervals, post-cast concrete is fixedly connected, and the intervals are determined by the size, stress condition and bearing capacity of the connecting pieces of the prefabricated external wall boards. The shear-resisting bearing capacity A of the connecting piece is larger than the basic combination of the vertical earthquake load B and the gravity load C of the external wall panel, and the load of the connecting piece is related to the weight (size) of the prefabricated external wall panel. After the quantity of the required connecting pieces is calculated through stress analysis, the connecting pieces are evenly arranged on the outer wall board at equal intervals.

The pre-buried connecting piece is an anchoring steel plate 2, and the specification of the pre-buried connecting piece is determined by the arrangement form and the stress condition of an end plate anchoring steel bar 3 welded with the pre-buried connecting piece. The steel bar main body of the end plate anchoring steel bar 3 is of a cylindrical structure, and the anchoring plate at the end part of the steel bar main body is of a cylindrical structure with the diameter larger than that of the steel bar main body and the length smaller than that of the steel bar main body. The anchoring steel plate 2 is provided with a round hole, and the size of the round hole is matched with the section size of the steel bar main body of the end plate anchoring steel bar 3. The end plate anchoring steel bar 3 penetrates through the round hole of the anchoring steel plate 2 and then is welded; the pre-buried connecting piece guarantees that load transmission meets the design requirement, and can adapt to construction error and component manufacturing deviation that allow to exist in the work progress. The end plate anchoring steel bars 3 and the anchoring steel plates 2 are welded and then embedded in the outer wall-hanging plate. The end plate anchoring steel bar 3 is connected with the main structure 4 in a pouring mode.

The bottom of each external wall board is provided with a plurality of threaded blind holes 9, the side wall of each external wall board is provided with a pulp inlet 10 and a pulp outlet 11, and the pulp inlet 10 and the pulp outlet 11 are respectively communicated with the threaded blind holes 9. The upper end of the external wall board is provided with embedded joint bars 5, one end of each embedded joint bar 5 is fixed in the external wall board, and the other end of each embedded joint bar 5 extends out of the upper end of each

external wall board

1, 16.

When two-layer external wall panel connects, this layer external wall panel 1 inserts in the screw thread blind hole 9 of upper layer external wall panel 16 through pre-buried dowel 5 to it realizes connecting to pour into grout 8 through advancing grout mouth 10. The function of the device is out-of-plane constraint action, and exposed corrosion caused by steel piece connection is avoided. Two ends of a horizontal gap 12 between the outer hanging wall plate 1 and the upper outer hanging wall plate 16 are sealed by sealing material pieces 6 and sealing mortar 7. The sealing material 6 may use MS-modified silane, PE rod, or the like.

The utility model discloses an installation does:

and (3) welding the end plate anchoring steel bar 3 after penetrating through the round hole of the anchoring steel plate 2, removing metal burrs of the anchoring steel bar 3 and the anchoring steel plate 2 after finishing processing, removing oil and rust on the surface, and brushing anti-rust paint and then pre-embedding on the outer wall-hanging plate.

After the external wall panel is hoisted, the elevation is adjusted and fixed by using the gasket and the inclined strut, and then the end plate anchoring steel bar 3 at the upper end of the external wall panel is connected with the main structure 4 in a pouring way. Sealing materials and refractory materials are adhered to a vertical joint 15 between the outer wall boards of one layer and the outer wall boards of the other layer, a guide pipe 14 and a water diversion port can be arranged for water prevention, and an additional board joint adhesive 13 can be used for the guide pipe 14. The sealing material can be MS modified silane, PE rod, neutral silicone sealant, polyurethane and the like, and the fire-resistant material can be fireproof heat-insulating mortar and the like.

After the end plate anchoring reinforcing bar 3 and the main structure 4 concreting intensity reach the design requirement, insert the pre-buried dowel bar 5 of this layer of outer wall panel 1 in the screw thread blind hole 9 of being in upper layer outer wall panel 16, realize being connected of this layer and upper layer outer wall panel. Grouting is carried out through a grout inlet 10 and a grout outlet 11 of the threaded blind hole inlet 9. The two ends of a horizontal gap 12 between the layer and the upper outer hanging wallboard are plugged by adopting sealing material pieces 6 and plugging mortar 7, and a waterproof measure is completed.

The connection node structure of the utility model adopts the pre-buried connecting piece to connect the external wall-hung plate and the main structure, avoids the problem of collision with the main structure reinforcing steel bar, has convenient construction, and can reduce the influence of the external wall-hung plate on the rigidity of the main structure; the lower end of the external wall board is provided with a threaded blind hole which is connected with the embedded joint bar extending out of the external wall board in a grouting way, thereby avoiding the exposed corrosion caused by the connection of steel pieces. The utility model discloses a connected node structure arranges through reasonable interval, can avoid screw thread blind hole grout in-process, and horizontal seam between the screw thread blind hole exists not irritates the reality, does not become holistic condition even, and facade effect is to the requirement of hanging wallboard seam position when adaptable architectural design, can highly establish the seam wantonly under the condition of guaranteeing to be reliably connected with major structure, and the suitability is strong. The horizontal joint is used for forming structural waterproofing for the tongue-and-groove, the structural material of the sealing material is waterproof, and the grouting material forms structural waterproofing to form a combined waterproofing measure, so that the waterproofness of the whole connecting node can be greatly improved.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a prefabricated concrete externally-hung wallboard's connected node structure, includes interconnect's externally-hung wallboard, major structure (4), its characterized in that, the junction of externally-hung wallboard and major structure (4) be equipped with pre-buried connecting piece according to a determining deviation, pre-buried connecting piece include anchor steel sheet (2) and end plate anchor reinforcing bar (3), end plate anchor reinforcing bar (3) run through behind anchor steel sheet (2) welded connection, end plate anchor reinforcing bar (3), anchor steel sheet (2) weld the back pre-buried on externally-hung wallboard, the other end of end plate anchor reinforcing bar (3) fix in major structure (4).

2. The connecting node structure of the precast concrete outer wall panel according to claim 1, characterized in that a plurality of threaded blind holes (9) are arranged at the bottom of the outer wall panel, the top of the outer wall panel is provided with embedded joint bars (5) corresponding to the threaded blind holes (9), one end of each embedded joint bar (5) is fixed in the outer wall panel, the other end of each embedded joint bar extends out of the top of the outer wall panel, and when the outer wall panel (16) of the upper layer is connected with the outer wall panel (1), the embedded joint bars (5) of the outer wall panel (1) of the upper layer are inserted into the threaded blind holes (9) of the outer wall panel (16) of the upper layer.

3. The connecting node structure of the precast concrete outer-hanging wall panel according to claim 2, characterized in that the embedded joint bars (5) of the outer-hanging wall panel (1) are inserted into the threaded blind holes (9) of the outer-hanging wall panel (16) at the upper layer, and the grouting material (8) is poured to realize the fixed connection.

4. The connecting node structure of the precast concrete outer-hanging wall panel according to claim 3, characterized in that the side wall of the outer-hanging wall panel is provided with a grout inlet (10) and a grout outlet (11), and the grout inlet (10) and the grout outlet (11) are respectively communicated with the threaded blind hole (9).

5. The connecting node structure of the precast concrete outer-hanging wall panel according to claim 4, characterized in that the connecting part of the upper outer-hanging wall panel (16) and the main outer-hanging wall panel (1) is provided with a horizontal gap (12), and both ends of the horizontal gap (12) are provided with a sealing material piece (6) and a sealing mortar (7) for sealing and waterproofing.

6. The connecting node structure of the precast concrete external wall-hung panel according to claim 1, wherein the other end of the end plate anchoring steel bar (3) is connected with the main structure (4) by casting.

7. The connecting node structure of the precast concrete external wall panel according to claim 1, wherein the steel bar main body of the end plate anchoring steel bar (3) is a cylindrical structure, the anchoring steel plate (2) is provided with a circular hole, and the size of the circular hole is matched with the cross-sectional size of the steel bar main body of the end plate anchoring steel bar (3).

8. The connecting joint structure of precast concrete outer-hanging wall panel according to claim 5, wherein said sealing material member (6) comprises MS modified silane or PE rod.